Post-type sewing machine



May 22, 1928. 1,670,920

l C. H. WILKES POST TYPE SEWING MACHINE Filed Dec. 16, 1922 6 Sheets-Sheet 1 W y/I i 9 l l Mii/d rum May 22, 1 928.

C. H. WILKES K POST TYPE SEWING MACHINE Filed Dec. 16, 1922 6 Sheets-Sheet 2 NQ L fk anouulfa l May 22, 1928.

c. H. WILKES PosT TYPE SEWING MACHINE Filed DeQ .1e, 1922 e' sheets-sheet 3- nvenfo-z www@ JA; lrromup May 22, 1928. 1,670,920

' c. H. wlLKEs POST TYPE SEWING MACHINE Filed nec. 1e, 1922 e sheets-sheet 4 May 22, 1928.

C/QgM/Q mobi" May 22, 192s.

1,670,920 Cf H. WLKES PosT TYPE sEwiNG- MACHINE Filed Deo. 16. 1922 n 6 Sheets-Sheet 6 a@ CA2-WWK Q (LKML 'y Grammy;

Patented May Z2, 1928.

CLARENCE H. WILKE TES PATENT OFFICE.

S, OF- GLOVERSVILLE, NEW YORK.

ros'r-TYrE SEWING MACHINE.

Application med December 16, 1922.v

r1`his invention relates to sewing machines of the post type, used principally for the sewing of gloves.

The object of the present invention is to provide a practical post type machine embodying ltwin lock stitch mechanisms in combination with one mechanisms.

or more cover thread Other objects of thepresent invention relate to thevarious parts of the machine and `to combinations of parts as more particularly pointed out in the claims.

The invention in its broadest aspect may be considered asr an improvement on the machine described in my previous 1,049,430, dated January 7, the tiret and as far as I know practical post type loclr thread.

Patent No. 191s,

which is the only machine embodying a The machine illustrated in my former patent is satisfactory as'far as the work done by it pable of suiiicientl is concerned, but is incay high speed to permit its being usedin rivalry, with the? usual type or modern sewing machines, due not only to its excessive length of throw but also to several other details of construction.

In the present machine great advantages are obtained by reversing the relative positions ot needle bar and shuttle as shown in my earlier patent and the mechanism so as to in the re-designing of permit of the use lof c p a plurality of cover threads which in themselves aid in vent raveling.

the locking of the seam to pre- In the drawings 1 have illustrated the construction of my sewing machine as, it is now being used, and in which,-

`- Figure 1 is a side elevation of the machine viewed from Fig. 2 is a similar view the left` hand side.

Fig. 3 is a plan view.

the right hand side.

but viewed from Fig. 11 is a front elevation of the forward parts ot the machine, the rear being omitted ness.

Fig. 5 is a side view the cam mechanism in for the salte of clearof the shuttle mechanism with all of the several partsin place.

Fig. 6 is a similar view but with the shuttle race latch raised and the shuttle and its driver removed to exposev to presser Jfoot and guide.

view the serial No. 607,380.

' Fig. 7 is a vertical section taken on the line 7-7 of Fig. 1.

Fig. 8 is a vertical section partly in front elevation illustrating the shuttle drive.

Fig. 9 is a horizontal section partly in plan of the mechanism shown in Fig. 8.

Fig l10 is a perspective View of one of the shuttle drivers, the vpinion being omitted to expose the shaft. y

Fig. 11 is a perspective view of the lower portion of the presser foot mechanism.

Fig. 12 is a front elevationV of the twin needle thread tension.

Fig; 13 is a side view of the needle bar and feed showing the parts as they appear vwhen the feed has moved kto the rear limit of its'travel at which time the twin needles arel entirely within thepost. f

Fig. 14 is a similar `view but showing the feed at its Jrorward limit of travel and lowered andthe needle bar in its highest position.v p

Fig. "15 is a perspective view of the needle bar unit. 1 Fig. 16 is a' horizontal section taken through the needle bar just below the bed of the machine illustrating principally the needle bar and feed connections.

Fig. 17 is a plan view of the top of the ost. l f' Fig. 18 is a perspective view1 showing two pieces of fabric being united and illustrat- -ing t-he position of the parts at the moment of emergence of the twin needles, the ends of the bobbin threads being shown moved at an angle inorder not toconfuse the illustration of the loopers.

Figgf19 is a similar view but showing the needles in their highest position. y

Figpl() is a perspective view of the com` pleted seam. l p

rReferrin i articularly to Fig. 1, the machine inclu es a rectangular housing 10l enclosing thev various cam mechanism, this housing 10 being supported on the bed 11 and in turn supporting the thread holding standard 12on which are mounted in the usual manner the needle thread spools 13 and 14 and the two looper thread spools 15.

From the housing 1() extends forwardly the sewing machine armv 17 carrying, instead y tion, is insert-ed ly facing slot 26 in the flat is` seemingly quite impossible.

of the usual needle bar mechanisms, the shuttle mechanisms and also the loopers, the needles in this machine reciprocating within the stationary postJ rising from the front of the bed of the machine.

The post 2O is conveniently formed of two similar members 21 secured together in any preferred manner as by the rivets 22 (Fig. 13) and the two members 2l are then secured within the circular flange memberl 24 which fastens the post to the bed. The postsections as best seen in Fig.fl7 are generally L-shaped in their upper portion not quite meeting one another, so as to form a forwardfront face of the post.

With the exception of the present machine, all post type sewing machines have round front faces. The advantage, however, of the flat front face is very material as the operator is enabled to guide the fabric with much greater ease over the flat front post, enabling hei tomake a perfectly straight seam which with the present type post in use A guidingr T-shaped in cross secbetween the two sections 2l of the post and serves adual function, namely, to hold together'the two sections of the post and to act as aguard for the two needles. y'

The feed, contrary to the usual custom, in the present invention consists in an elongated bar having a central slot 3l forming the pivotal support of the feed, a pin or other pivotal means 32 passing through the two sections of the post and forming the fulcrum for the feed. kThe upper end of the feed bar is serrated at the top as at 29 to form the usual feed and is recessed slightly as at 33 in order tov clear the partition 27.

At its lower end the feed bar 30 carries a lug 34 serving as a seat for the spring 35 and also for a connection to the link 36 pivoted at its other end to the plunger 37. This plunger 37 is guided bore 38 of the block 39 by means of a pair of bearings ;vv the forward one of which, 40, is fast toI theblockwhile the rear bearing 4l is fast to the plunger itself. A spring 42 is loosely mounted on the plunger 37 between the stationary bearing andthe sliding bearing 4l and tending at all times to hold the thimble end 44 of the plunger against the feed push vlever 45.

Adjustment of the threaded thimble 44, which is locked in vplace by a lock nut 47 alters the throw of the feed to govern the length of the stitch. The feed push lever as best seen in Fig. 1 is a bell crank lever pivoted on the stationary shaft 49 and having at its upper end 50 an elongated face 51 to be engaged and operated by the pear-shaped partition member 27,

feed cam 52. Themeehamsmjust describedA at each revolution of the main power shaft within the cylindrical.

55, by the depression of the face 51, rocks the bell crank lever 45, reciprocates vthe plunger 37 and through the link 36 rocks the .connectedby a link 62 adjustably secured to the can'ifo'llower 64 pivoted onthe stationary shaft 49 which extends through the housing lO. The cam follower 64 is provided with a centrally positioned slotted lug 67, a kscrew andv bolt connection 68 passing through the link G2 and lug G7 so thatv the height of the throw of the feed may be altered to compensate for wear of the serrated teeth 29 and also and more particularly to facilitate the handling of the various qualities of fabric, a very low feed being required for example with silk, while certain particular grades of high feed. At each revolution of the drive shaft the pear-shaped cam 65 oscillates its follower 64 which transmits motion through the link 62 and the centrally pivoted lever 57 to the lower end of the thereby raising the feed` bar 30 on its fulcrum 32 which motion is readily permitted by reason of the pivoted link connection 36 between the reciprocating plunger 37 andthe feed. l

As the feed is entirely retracted and in its forward and lowest position the flat edge 69 of the upper portion of the feed bar is exactly parallel to the flat front edge of the post 20 and remains sofwhile the needles rise to their highest point and throughout the movement of the shuttles. As the needles are retracted within the operated and raises the feed against 'thetension of the spring 35 andl while the feed bar is so raised the plunger 37 is projected forward to bring the flat edge 70 of the lower portion of the feed bar into exact parallelism with the flat .front face of the post.

Depending from the front edge of the bed l1 is a bracket 75 serving as a support for the standard 76 on which slides a sleeve 77 pivoted to the needle unit 78 by means of a screw 79er other quick detachable connection. A spring 80 connects hook 8l on the enlarged end 82 of l a hook 83 on'the bottom of the bracket 75 tending to hold the sleeve' 77 steady in its reciprocating movement on the standard 76. The needle unit 78 in addition to its enlargement 82 consists in a relatively long thin bar S5 grooved as at86 and having a thread eye 87 at a point near the bottom of the rod and preferably quite near the bore 88 through the enlargement 82.

The needles 89 and l90 Vare exactly alike and are of standard manufacture. They post the lever 57 is.

soft leather requirea' very 1 lug 34 the needle unit vand y one should become are twins: in every respect as I very much prefer to replace both needles in case that broken. This is obviousbut it tends very strongly to improve the'loolrs of the work. `rlhe needles 89 and'90 may be secured to the holder or needle unit bar by means of a set screw or in any other similar way, but my preference is to sweat the needles 'into place obviating all difficulties that might occur with the use of tiny set screws. practice find it convenient Vto replace an entire needle unit by unscrewing the fastening 79 and to let'the needle units accumu` late until quite a number `are to be reneedled.

Mounted in hangers 98 on the bed -11 beneath the housingl 10 is a stationary shaft 94 on which is pivoted the hub 9G of a bell crank lever having,- two substantially equal and relatively long arms, the vertical lone of which, 97, carries at its upper end a roller 98 engaging'the groove of the face cam 99 on the main shaft 55 while the horizontal arm 100 operates the needle unit by means of mechanisms best yseen in Fig'. 1.

The arm 10() atl its'forward end is reduced and cylindrical as at 101 snugly titting within the bore of the plunger casing 102, the latter being pivoted directly to the sleeve 77 preferably by means of ascrew pivot such as 103. Rotation of the main power shaft 55 causes the bell crank lever ly not necessary,

97-100 to oscillate so' asto cause the needleA bar unit to rise rapidly to the highest'point of its movement. to dwell there while the loops in the needle threads are passed over the shuttles. and then to retract the needles rapidly. to their;lowestjposition, holding,1 them stationary there during a slightperiod while the feed mechanism is at its highest-point.

ln its general form the shuttle `mechanism is entirely of well known elements, save for, the associated mechanisms for spaci'ng'the two shuttles apart and in the combination of the shuttles with the other parts of the mechanism, and hence requires no detailed description. f

Referring particularly to Figs. 5, 6 and 10, the shuttles vare of the shuttle-hook type having a main body havingr a hook 111 and to which is fastened a bobbin holder 112 having` the usual lip and screw connection so as to hold the bobbin 114 in place. This shuttle and its driver 115 are in every way of the old and well known type, the driver having a shaft 116 to which is secured in any semi-permanent manner, as'by the pin 118, a drive pinion 119 meshing with the rack 120.

The eccentric 122 centrally mounted on the main power shaft 55 reciprocates the shaft 124 having bearings in the frontl and back walls of the housing 10 and being linked at its forward end to a pivoted yoke 125 mounted in thebearing 126 and being vpivoted at the lower end of each of its two arms tothe rack bar rods 128; the usual adjustment means 129 being provided in order to compensate for the slight wear of the shuttle hooks or the shuttle drivers and to insure the accurate positioning of the points of the shuttle hooks with respect to the loops in the needle threads.

A novel and important point of difference between this machine and all previous ones is that in this machine, for the irst time, the shuttles are mounted above the post. permitting the use of the shaft of the presser foot as a partition wall to separate and to guide the shuttles in their oscillating movement. The partition walls and 141 are each of the same thickness as the shaft 142 of the presser foot and serve to guide and support the presser foot in its forward and downward movement.

The presser foot proper is aA tlat rectangular piece of metal 144 having a transverse slot 145 to receive the needles andis secured to the flat shaft 142, which is recessed as at 146 to 'conform to the 'configuration of the lower portion of the shuttle race horns 149 and is beveled asat 15() to permit convenient manipulation of the shuttle hooks as hey are inserted and'removed from the arms 152 ofl the shuttle drivers.

The method of securing the shuttle hooksv within their respective races is of the usual type including a plurality of latch fingers 157 pivoted as at 158 and secured in place, when the shuttles are in position, by means offset screws 159 preferably having comparatively large knurled lation. The latches `157 are channeled out tol form a part of the race and the forwardly projecting horns 149 are also grooved for the vsame purpose, the latter,however, hav-A ing but two walls with the race groove since the presser foot shaft 142 and the partition 140 form the third or innerl wall of the shuttle race. Y f

' vThe two latch members 157 yare obviously independently pivoted and while they bear against one another near their pivots they are separated as at 174 in Fig. 4 atl their lower endsr in order to permit reception between them of the cast-off of the needle thread, that is, the loop in the needle thread formed by the oscillation of the shuttle hooks. Atl the front end ofthe lower portion of the presser foot shaft 142 is a` small but important element, the relatively sharp arcuate dividing guard 170, which not only insures the correct spacing of the needles but cooperates with the proximate guard web 171 of the partition 27 to ,guard each of the thimble needles in case the fabric should be pulled, accidentally or otherwise, transversely to the line of seam.

heads for rapid manipu- A Not only is the shaft 142 of the presser foot of material thickness so as to insure rigidity but it is supported at the top as it passes through the arm and at the bottom by its snug fit with the sturdy slotted race horns 149 so that there is no tendency for lateral movement of the presser foot and consequently the guiding guard 170 is always in exact registry with the corresponding cooperating guiding guard 171 of the partition in the post.

On top of the housing 10 is mounted a stationary shaft 180 on which is mounted a pair of sleeves 181 and 182 carrying respectively the rockers 183 and 184 each of which engages a cam on the main shaft 55. The rocker 184 is connected to the shaft 187 by means of a crank 188 and a rod 189 there being a slot and pivot connection 190 between the rod 189 and the upper arm 191of the rocker 184 in order to assure accurate timing and to give minimum throw ofthe looper arms. This vwhile perhaps of convenience is not at all essential as the `timing and throw of the loopers are very rarely, if ever, modified .on machines after once being set. The fork 194 secured to the shaft 187 and forming with the crank 188 a bell crank lever operates the `cross arm loopers 196 and 197 by means of the toggle action 199, reversing the positions of the looper arms 196 and 197 at each movement, upor down, of the cross arm 200.

Particular attention is invited to the mechanism best seen in Fig. 2 by means of which the yoke 194 is operated once to each two revolutions of the main drive shaft 55,' this movement being desired in order that l the loopers may cross the stitch but once to each ycomplete cycle of movement of the needles. A. small pinion 202 fast to the main drive shaft drives a gear 203 of twice the diameter imparting to the stub shaft 204 a half time revolution, this shaft carrying the cam 205 which drives the lower arm 207 of the rocker 184. At each revolution of the cam 205 the rod 189 is opera-ted once forward and once backward; in other words, this connecting rod 189 and with it the fork 194 is operated in one direction only 'for each cycle of the needles and shuttles so that each of the two looper threads are thrown first to the right of the needles on one cycle of movement of the needle and shuttle mechanism and then to the left on the next cycle.

In addition to the movement of the looper arms 196 and 197 about their common pivot 209 these arms have a forward and backward movement in order alternately to clear the needles and to bring the looper threads or cover threads taut against the needles, such movement being imparted to the looper arms by means of the rocker 183 drivenV by the cam 210 which is connected to the crank ment causes the tips of the two loopers to move forward of the two needles as the loopers cross one another 1n front of the needles and to recede behind, or at least onl a line with, the needles as they are withdrawn in'to the post.

Referring now particularly to Fig. 19` the two needles are raised to their highest point and the two loopers have just moved to the limit of their backwardthrow so that the two looper threads 220 and 221 are taut against the needles and 89, respectively, and remain in this position while the bight 222, caused in the first motion of retraction of the needles, is madeinto a 'loop in the usual way by the shuttle ,hooks so that as the take-up mechanism draws down the loops in the needle threads the looper threads 220 and 221 will be tightly held by the needle thread.

As the needles emerge from the post the loopers are spread wide apart and their tips are back ofthe line connecting the two twin needles, but as the needles penetrate the fabric a short distance vthe loopers start to move forwardly and simultaneously to cross one another. They complete. their cross movement still in their forward position and then while spread apart move rearwardly as the pointsv of the. shuttle hooks engage the bights in t-he needle'threads to form it into a loop. When the points of the shuttle hooks are still but a slight distance in front of the needles the loopers have completed their. movement and remain quite stationary during the time the loop slips over the shuttle and do not start to reverse and to move forward until the shut-- tle hook points are again almost in line, but

still a ytrifle forward of the twoneedles sol that the .two rloopers bars cross each other only during the time when the shuttle hooks are behind the needles and the needles are at the extreme highest point of their travel.

The rock shaft 225 is journaled the two side walls of the. housing 10 and carries a pair of arms 226 and 227 forming a bellcran-lr lever the arm 226 of which is a caml follower having the anti-friction lroller 228 which engages the/large cam 229 best seen at the right hand wall ofthe casing in Fig. 3, while the lower arm is the take-up being provided with a plurality of orifices 230 through which the needle threads pass as they extend from the tension 232 to the guide-eye 233 on vthe plunger casing 102, When the shuttles are at their highest point thelower end of the take-up moves rapidly rearward in the usual mannerl drawing the loop or cast-oftn Ain the needle thread down tight against the fabricr in the well'kn'own manner, the take-upmoving slowly'forward as ythe needles rise to givethe vneedles thread7 as usually expressed.

The needles threads 240 and 241 pass from the spools 13' and 14 passing through the thread guide' 244 down through a second thread guide-'245, to and through the two tubular thread guards 246 each of which is slotted for convenient threading and thence' through a holev 247 inthe bed to the thimble 248 and from there the two needle threads separate, one passing to eachof thetwo needle thread tension 'devices 232 after which they are crossed over the central post 249 then passing to the take-up, each thread passing separately lthrough one of the holders-,230 lin 'the take-up and again passing together through the eye orthready guard 233, then through thebore 88 of the needle unit and up along the groove86 through the small eye 87 and thence to the needles 89 and 90. In actual practice no serious attempt is made to 240 and 241 vfrom crossing oneanother in their travel since apparently 'the separation of the 'threads in-their path, vas previously mentioned, prevent `any rubbing `of the threads even though they shouldcross.

The bobloi'nsV are wound in the usual way and'hence require no description.V The loop-- er threads 220 and 221 pass from the two spools 15 on opposite sides-of the standard 12 and do not cross each other exceptat the tips of the looper bars.` From the spools these threads pass first from the spring wire guides 250 andthen'into the tension disks 251, then to the dropjor balancing,` tensions 254, then to the wirethread guides 2.55, from whence they pass to the eyes 257,'here shown as three in number, on each looper arms, and fina'llythrough the 'central bore ofthe looper noses. 5

In'order to insert the work, the hand lever 260, pivoted as at 261, and carryingfat its upper end a cam 262, is pulled forward so that the cam engages an anti-friction roller 263 pivotally mounted onfv an arm on the shaft'142 of the presser foot, sof asY toraise i the `presser :toot against the tension of the leaf spring 265. The strength of this spring isgoverned in the usual way by the knurled set screw 266 in the pivoted stirrup 268 fastened to the arms 17. Tolower the presser foot against the work on theA post thef'handle 260 is moved vrearwardly, which frees the cam from the roller 263and places the movement ot' the presser toot entirely under the intluence of the leaf spring 265.

prevent the needle threads- What I claim is: y1. A'post type sewing machine'lor clos-y ing the fingers ot gloves of the type having.

a slender, vertical post to be received within a linger of a glove characterized by the combination or' twin needles kwithin the post and cooperating shuttlemechanisms above the post. i y

2. A post type sewing machine having a slender, vertical post ot' such size as to be received withinl a` finger ofla glove characterized by'the provision of a'needle, a feed,

both within the post.

3; A'post' type sewing machine yot the type having a-slender, vertical post adapted tobe received within 'a Vtingerof a glove and employing a needle bar and a feed within said post, characterized by the provision'of means whereby the feed guides. the needle bar in its travel. a

4. `In a rsewing machine of thetype described, a slender, vertical postfiorming a work supporting member, a partition at the top of'said member, a needle'bar carrying a plurality. of needles, ksaid needle barbeing entirely within, the work supporting `member and lying entirely forward of the plane of said partition.` n 5. sewing machine of the post type vvin which the post is vertically slotted from top to bottom to facilitate the threading of the. machine. I a J 6. In a sewing machine of the type employing two shuttle mechanisms, a presser foot* acting as a wall Afor the two shuttle mechanisms. f 1

7 `A sewing machine of the yloclr stitch type employing a plurality of shuttles characterized'by the provision that each r` of the shuttles bears against the presser toot.v -f

Al sewing machine of the type having a slender, vertical postv of' such size as tobe received rwithin, alinger oi'a' glove and'employing a plurality of needlesanda presser foot on opposite sides of thegoods tobe sewed characterized by the provision of vertically elongated Vmeans movable' with the pressery foot to' guide` 'and separate the needles. p l

-9. Asewing machineof the type employing a plurality of shuttle races and appresser foot, characterized by the presser foot being guided vin its travel by portions of the shuttle races. c f

10. In a post type glove finger sewing machine, the combination of a slender, vertical work supporting post and a needle bar ,unit and leed mechanism ywithin the post. -11. In a post type sewing machine, the

combination of a slotted post and a grooved '125 provision of a reciprocating needle bar carrying needles at its top portion, and a pair of spaced means for guiding said bar in its reciprocation, one of said means being the feed and the other lof said means being located beneathy the bed of the' machine.

13. In a post type sewing machine, a slender post, a vertical standard, a sleeve sliding on said standard,'a reciprocating needle bar pivoted to said sleeve land extending into said post, and means within guiding the needle end of said a slender, vertical post of such size as to be received within a finger of a glove characterized by the provision of means within the post for feeding the work, and a needle bar also within they post and engaging said means.

16. A post type sewing machine for closing the finger seams of gloves and having a slender, vertical post of such size as to be received within a linger of a glove characterized bythe provision of a feed member pivotally mounted within the post, and a needle also within said post.

, 17. In a sewing machine, a slender,.verti cal post, a needle within said post, a slotted feed bar within the post, a pivot for said feed bar, means for oscillating the feed bar about said pivot, and additional means for moving the feed barvupward during its oscillation.

`18V.l A feed bar for a post type glove sewing machine characterized by the provision oftwo flat needle bar guiding faces arranged at an obtuse angle with one another.

19. In a post type glove sewing machine, a flange, a plurality of post sections fitting within said Harige, and a partition bar joining thev tops'of the post sections.

20. In a post type glove sewing machine, a hollow post and a lpartition T-shapedcin cross section at the top of the post for guiding and supporting the needles. i 21..In a sewingmachine, a presser foot characterized by the provision of a vertically disposed arcuate lip for guiding and supporting twin needles. 22. In a post type glove sewing machine havingl a slender, vertical post of such size as to bereceived within a finger of a glove characterized by the provision lof needles supporting and guiding means within the post, and further needle separating and guiding means carried by the presser foot and cooperating with the ymeans in the post.

23. A sewing machine having in combination an .elongated work supporting post, a needle in the post, a feed' mechanism inthe post, and a shuttle opposite the needle.

24. A glove finger sewing machine having in combination a slender post for supporting the work, a needle in the post, feeding means in the post, and means cooperat'-;

v 26. A sewing machine having in combination a post capable of supporting work, means within the post,forcreciprocatinga plurality of needles into and outof the end of the post, means within the postv for .actuating .feed devices in the end of the post f and a plurality of shuttles cooperating with said needles'.

27. A sewing machine having in" combination a post, portions of which includ-ing the end thereof. arecapable ofn supporting work, `means within the, post forl reciprocatingaplurality of needles into and out ,of the end of the post, means within the-post for actuating feed devices inthe end of the post and a plurality of shuttles'cooperatl ing with said needles and a presser footcooperating with said feed devices.

28. A machine for ysewing blanks .to form tubes in such a ,manner that ,at each seam one edge will be inside thetube'and the other edge outside having in combination post not larger than theclosed tube, means within they post for reciprocating-a, plurality of needlesinto and out of the end `of the post, means within the post for actuating feed devices in the end ofthe post and a plurality of ,shuttles Y cooperating lwith said needles. f f

29. Av machine for sewing blanksfto, form tubes in such a manner that at each seamone edge willbe inside the tube `and the other edge outside having in Acombination a post which approximates the size of the Closed tubes so that in guiding the blankfor the last or closing seam the edges tov form this seam can-,bev overlapped ongthe post, means within the post for reciprocating a plurality of needles into and outof the end ofthe post, means-.within the post foractuating .feed devices in the end of the post'and a plurality of shuttles cooperating with said needles. y v f. Y A 4 c 30. A machine for sewing blanks tofform tubes in such a Vmanner that at eachseam .one edge will be inside the tube and theo'ther edge outside having in combination a post which approximates the size lof the closed able. distance ahead of the needles, means Within the post for reciprocating a plurality i of needles into and out of the end of the post, means Within the post foractuating feed devices in the end of the post and additional cooperating mechanism to form a series of stitches.

CLARENCE H. WILKES. 

